3 Iodo 9h Carbazole

3-Iodo-9H-carbazole is a kind of organic compound. The chemical structure of this compound is based on carbazole as the parent structure. Carbazole itself is a nitrogen-containing fused cyclic aromatic hydrocarbon, and its molecule is formed by fusing two benzene rings with one azacyclopentadiene ring.
In 3-iodo-9H-carbazole, "3-iodo" means that the iodine atom is substituted at a specific position in the carbazole parent structure, that is, the check point numbered 3. In the representation of the chemical structure, the carbazole parent is numbered to pinpoint where the substituent is located.
9H-carbazole "9H" indicates that the hydrogen atom at a specific position in this compound is at position 9. After the iodine atom is replaced at position 3, a unique chemical structure of 3-iodo-9H-carbazole is formed. This structure endows the compound with specific physical and chemical properties, and has important research significance and potential application value in many fields such as organic synthesis and materials science. For example, in the field of optoelectronic materials, such iodine-containing carbazole derivatives are expected to be used in the preparation of new optoelectronic materials due to their unique electronic structures and excellent optical and electrical properties.

3-Iodo-9H-carbazole is an organic compound, and its physical properties are very interesting. Let me explain in detail.
The appearance of this compound is often solid, and the texture may be crystalline. This is because of the regular arrangement formed by the interaction between molecules. Looking at its color, or white to light yellow, like the stamens of the early autumn blooming, it is elegant but not lost charm.
The melting point is a crucial item, which marks the temperature node of the transition of a substance from a solid state to a liquid state. The melting point of 3-iodo-9H-carbazole has a specific value after rigorous measurement. This value is an important basis for identifying and purifying this compound. Due to the different purity of the substance, the melting point may be slightly different, just like human character, the subtleties see the real chapter.
Solubility is also an important dimension to consider its physical properties. In the embrace of organic solvents, it exhibits unique solubility. For example, in some polar organic solvents, it can quietly dissolve, just like a fish entering water, and blend seamlessly; in non-polar solvents, its solubility is very different, or only slightly soluble, or almost insoluble, just like the difficulty of oil and water, which is due to the difference in molecular structure and the force between solvent molecules.
In terms of density, 3-iodo-9H-carbazole also has its own characteristics. Its density reflects the mass of the substance in a unit volume. Compared with other similar compounds, it is either light or heavy, which is its unique mark. This characteristic has a non-negligible role in practical operations such as separation and mixing. It is like a ruler in the hands of craftsmen, accurately measuring the characteristics of substances.
In addition, the stability of this compound is also worth mentioning. Under normal circumstances, it can maintain the stability of its own structure, just like a calm person, and it is not alarmed. In the event of high temperature, strong light or the invasion of specific chemical reagents, its structure may change, just like a calm lake throwing boulders into the lake, creating layers of ripples. This is the dynamic performance of its physical properties under different conditions. In conclusion, the physical properties of 3-iodo-9h-carbazole are rich and diverse, which lays a solid foundation for its application and research in the field of chemistry.

3-Iodo-9H-carbazole is one of the organic compounds. It has a wide range of uses and plays an important role in many fields.
In the field of organic synthesis, this compound is often used as a key intermediate. Due to the activity of iodine atoms in its structure, it can be combined with other organic groups through various chemical reactions to build more complex organic molecular structures. For example, in the Suzuki reaction, the iodine atom of 3-iodo-9H-carbazole can be coupled with boron-containing reagents to form a carbon-carbon bond, which is of great significance for the synthesis of aromatic hydrocarbon derivatives with specific structures. The synthesis of many bioactive natural products and pharmaceutical molecules depends on this approach.
In the field of materials science, 3-iodo-9H-carbazole also shows unique value. Because of its rigid planar carbazole structure, it can impart specific photoelectric properties to materials. It can be introduced into polymer materials to prepare polymers with special optical properties, such as for the development of organic Light Emitting Diode (OLED) materials. In OLEDs, such compounds can be used as components of light-emitting layer materials. Due to their structural characteristics, they can effectively regulate the color and efficiency of light emission, improve the performance of OLED devices, and contribute to the development of display technology.
In addition, in the field of medicinal chemistry, some compounds modified on the basis of 3-iodo-9H-carbazole have been studied to show potential biological activities. Scientists modify their structures to explore their interactions with biological targets, hoping to discover lead compounds with medicinal value, and then develop new drugs.

3-Iodo-9H-carbazole, or 3-iodine-9H-carbazole, is synthesized by various methods, which are described in detail below.
First, carbazole is used as the starting material and can be obtained by halogenation reaction. Usually in a suitable reaction vessel, carbazole is dissolved in a suitable organic solvent, such as dichloromethane, N, N-dimethylformamide, etc. Then a halogenating agent is added, such as iodine elemental ($I_ {2} $) and a suitable oxidizing agent, commonly such as hydrogen peroxide ($H_ {2} O_ {2} $) or potassium persulfate ($K_ {2} S_ {2} O_ {8} $). At appropriate temperature and reaction time, the oxidizing agent prompts the electrophilic substitution reaction of iodine with carbazole, mainly introducing iodine atoms at the 3rd position of carbazole to obtain 3-iodine-9H-carbazole. This method is relatively direct and the conditions are relatively mild. However, it is necessary to pay attention to the reaction selectivity and avoid the formation of polyhalogenated products.
Second, it is prepared by a coupling reaction catalyzed by transition metals. First, carbazole is properly functionalized, for example, carbazole is made into borate esters or halocarbazole derivatives. If carbazole borate is prepared, carbazole can be formed by reacting with the corresponding borate ester reagent under the action of a base and a transition metal catalyst (such as palladium catalyst, such as tetra (triphenylphosphine) palladium ($Pd (PPh_ {3}) _ {4} $)). Subsequently, the carbazole borate and iodine reagents (such as iodoaromatics or iodoalkanes) under basic conditions and palladium catalyst undergo Suzuki coupling reaction, which can introduce iodine atoms at the 3 position of carbazole to generate the target product 3-iodine-9H-carbazole. This method has the advantage of high selectivity and can effectively construct carbon-iodine bonds, but the catalyst cost is high and the reaction conditions are relatively strict.
Third, the guide group strategy can also be used. Introduce a specific guide group on the carbazole molecule, which can coordinate with a metal catalyst to guide the halogenated reagent to selectively react at the 3 position of carbazole. For example, introduce a guide group such as pyridyl, and react with an iodine source under the catalysis of transition metals (such as copper, palladium, etc.) to complete the synthesis of 3-iodine-9H-carbazole. After the reaction, the guide group can be removed by suitable methods. This strategy precisely controls the selectivity of the reaction check point and greatly reduces side reactions. However, the introduction and removal of guide groups increase the complexity of the reaction process.

3-Iodine-9H-carbazole, the price in the market, it is difficult to determine. The price of the cover varies due to many reasons, such as the quality of the quality, the situation of demand and supply, the simplicity of the manufacturing process, and the wide and narrow market.
If the quality is high and pure, the price will be higher than that of ordinary products. There are many people who ask for it, and there are few people who supply it, the price will rise; on the contrary, if the supply exceeds the demand, the price will drop. Furthermore, if the preparation requires complicated methods and expensive materials, the cost will increase and the price will also be high. Different cities, such as remote and prosperous places, have different prices.
In the market of various trading fields and chemical materials, there may be a price. However, with the changes in the present, the range of its price cannot be determined. Ask a merchant specializing in chemical raw materials, or you can get a recent price. If you want to know the price widely, you can visit the platform, forum of the chemical industry, or have a colleague tell you. Or check the information site of the chemical price to find out the approximate price. However, it is not accurate, it is for reference only.